fix(skills): preserve deleted default repositories (#5356)

* fix(skills): preserve deleted default repositories

* fix(skills): persist default repo initialization state

src-tauri/src/database/tests.rs

@@ -151,6 +151,38 @@ fn normalize_default(default: &Option<String>) -> Option<String> {
         .map(|s| s.trim_matches('\'').trim_matches('"').to_string())
 }
 
+#[test]
+fn deleted_default_skill_repo_is_not_restored() {
+    let db = Database::memory().expect("create memory db");
+
+    assert_eq!(db.init_default_skill_repos().expect("initialize repos"), 4);
+    for repo in db.get_skill_repos().expect("get initialized repos") {
+        db.delete_skill_repo(&repo.owner, &repo.name)
+            .expect("delete repo");
+    }
+    assert!(db.get_skill_repos().expect("get deleted repos").is_empty());
+
+    assert_eq!(
+        db.init_default_skill_repos().expect("reinitialize repos"),
+        0
+    );
+    assert!(db.get_skill_repos().expect("get repos").is_empty());
+}
+
+#[test]
+fn existing_skill_repo_selection_is_not_supplemented() {
+    let db = Database::memory().expect("create memory db");
+    let default_store = crate::services::skill::SkillStore::default();
+    db.save_skill_repo(&default_store.repos[0])
+        .expect("save existing repo");
+
+    assert_eq!(db.init_default_skill_repos().expect("initialize repos"), 0);
+    assert_eq!(db.get_skill_repos().expect("get repos").len(), 1);
+    assert!(db
+        .get_bool_flag("default_skill_repos_initialized")
+        .expect("get initialized flag"));
+}
+
 #[test]
 fn schema_migration_sets_user_version_when_missing() {
     let conn = Connection::open_in_memory().expect("open memory db");